Ember core build definition - proof-of-concept for API

Broccolifile.js

module.exports = function (factory, broccoli) {
  var UglifyJSFilter = require('broccoli-uglify-js')(broccoli)
  var ES6ConcatenatorCompiler = require('broccoli-es6-concatenator')(broccoli)
  var StaticCompiler = require('broccoli-static-compiler')(broccoli)

  var featuresJSON = JSON.parse(fs.readFileSync('features.json', { encoding: 'ascii' }}))
  var devDefeaturifyFilter = new DefeaturifyFilter({
    features: featuresJSON.features,
    debugStatements: features.debugStatements
  })
  var prodDefeaturifyFilter = new DefeaturifyFilter({
    features: featuresJSON.features
  })

  var devEmberTree = factory.makeTree()
    .map('packages/ember-core/lib', '/') // should perhaps move to simply 'lib'
    // Let ember-core contain all of the following:
    // .map('packages/ember/lib', '/')
    // .map('packages/ember-handlebars/lib', '/')
    // .map('packages/ember-handlebars-compiler/lib', '/')
    // .map('packages/ember-metal/lib', '/')
    // .map('packages/ember-routing/lib', '/')
    // .map('packages/ember-runtime/lib', '/')
    // .map('packages/ember-views/lib', '/')
    // .map('packages/ember-application/lib', '/')
    // .map('packages/ember-extension-support/lib', '/')
    .map('packages/ember-debug/lib', '/')
    .map('packages/ember-testing/lib', '/')
    .addTransformer(devDefeaturifyFilter)

  var prodEmberTree = factory.makeTree()
    .map('packages/ember-core/lib', '/')
    // We may need a no-op replacement for ember-debug here
    .addTransformer(prodDefeaturifyFilter)


  var containerTree = factory.makeTree()
    .map('packages/container/lib', '/')

  var metamorphTree = factory.makeTree()
    .map('packages/metamorph/lib', '/')

  var rsvpTree = factory.makeTree()
    .map('packages/rsvp/lib', '/')


  // We pick-and-choose which dependencies we include, so we need to manually
  // make a tree for each bower package

  var backburnerTree = factory.makeTree()
    .map('bower_components/backburner/lib', '/')

  var routeRecognizerTree = factory.makeTree()
    .map('bower_components/route-recognizer/lib', '/')

  var routerTree = factory.makeTree()
    .map('bower_components/router/lib', '/')

  var handlebarsTree = factory.makeTree()
    .map('bower_components/handlebars/lib', '') // includes runtime

  var jQueryTree = factory.makeTree()
    .map('bower_components/jquery/lib', '/')


  var testTrees = [
    // need QUnit too
    factory.makeTree().map('packages/ember-core/tests', 'ember/tests'),
    factory.makeTree().map('packages/ember-testing/tests', 'ember/tests'),
    factory.makeTree().map('packages/container/tests', 'ember-testing/tests'),
  ]


  var includedDependencies = [
    containerTree,
    metamorphTree,
    rsvpTree,
    backburnerTree,
    routeRecognizerTree,
    routerTree
  ]

  var excludedDependencies = [
    handlebarsTree,
    jQueryTree
  ]


  // Global exports

  function globalES6Concatenator (trees, outputFile, wrapInEval) {
    return new ES6ConcatenatorCompiler({
      loadPaths: trees.concat(includedDependencies),
      importGlobalMapping: {
        'jquery': 'jQuery',
        'handlebars': 'Handlebars'
      },
      exportGlobalMapping: {
        'ember': 'Ember',
        'rsvp': 'RSVP'
      },
      wrapInEval: wrapInEval, // should have source maps eventually
      outputFile: outputFile
    })
  }

  var emberJs = globalES6Concatenator([devEmberTree], 'ember.js', true)

  var emberProdJs = globalES6Concatenator([prodEmberTree], 'ember.prod.js', false)

  var emberMinJs = globalES6Concatenator([prodEmberTree], 'ember.min.js', false)
    // Chain methods must stop mutating
    .addTransformer(new UglifyJSFilter())


  // ES6 (defeaturified); this should be pushed onto bower eventually

  var es6LibDev = new MergedTree([
      devEmberTree,
      // The following should become bower dependencies. For now they are
      // included.
      containerTree, rsvpTree, metamorphTree
    ])
    .addTransformer(new Renamer({
      srcDir: '/',
      files: ['**']
      destDir: '/lib-dev'
    }))

  var es6LibProd = new MergedTree({
      prodEmberTree,
      containerTree, rsvpTree, metamorphTree
    })
    .addTransformer(new Renamer({
      srcDir: '/',
      files: ['**']
      destDir: '/lib-prod'
    }))


  // Test

  var emberTestsJs = new ES6ConcatenatorCompiler({
    loadPaths: [devEmberTree, testTrees].concat(includedDependencies),
    wrapInEval: true,
    // Um. It's not clear how we should expose this.
    // ember-dev/support/tests/index.html.erb has a scary line count.
    // Maybe we just load one particular main module.
    mainModule: 'ember/test/main',
    outputFile: 'ember-tests.js'
  })


  return [emberJs, emberProdJs, emberMinJs, es6LibDev, es6LibProd, emberTestsJs]
}